What third-party libraries or tools did you use when creating automated tests?

When creating automated tests in Java, the following third-party libraries and tools are often used:

• JUnit — a basic framework for writing unit tests.
• TestNG — an alternative to JUnit with extended capabilities.
• Mockito — for creating mock objects and simulating dependency behavior.
• Selenium WebDriver — for automating web interface testing.
• AssertJ — for convenient and readable assertions.
• Cucumber — for writing BDD tests in a language close to natural language.

Example of using Mockito:

import static org.mockito.Mockito.*;

List<String> mockedList = mock(List.class);
when(mockedList.get(0)).thenReturn("Hello");
System.out.println(mockedList.get(0)); // Will output "Hello"